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3869195380 = 225193459769
BaseRepresentation
bin1110011010011111…
…0011110001110100
3100222122120111020121
43212213303301310
530411003223010
61435534141324
7164611422001
oct34647636164
910878514217
103869195380
111706072836
128bb951844
134987b392b
14289c248a8
15179a383da
hexe69f3c74

3869195380 has 12 divisors (see below), whose sum is σ = 8125310340. Its totient is φ = 1547678144.

The previous prime is 3869195357. The next prime is 3869195381. The reversal of 3869195380 is 835919683.

It can be written as a sum of positive squares in 2 ways, for example, as 2054264976 + 1814930404 = 45324^2 + 42602^2 .

It is a super-2 number, since 2×38691953802 = 29941345777226688800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3869195381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96729865 + ... + 96729904.

It is an arithmetic number, because the mean of its divisors is an integer number (677109195).

Almost surely, 23869195380 is an apocalyptic number.

It is an amenable number.

3869195380 is an abundant number, since it is smaller than the sum of its proper divisors (4256114960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3869195380 is a wasteful number, since it uses less digits than its factorization.

3869195380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193459778 (or 193459776 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 52.

The square root of 3869195380 is about 62202.8566868114. The cubic root of 3869195380 is about 1569.9056537894.

The spelling of 3869195380 in words is "three billion, eight hundred sixty-nine million, one hundred ninety-five thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 193459769 386919538 773839076 967298845 1934597690 3869195380